Power Transfer Analysis Using UPQC-PV System Under Sag and Interruption With Variable Irradiance

Amirullah, Amirullah; Soeprijanto, Adi; Adiananda,; Penangsang, Ontoseno

doi:10.1109/icosta48221.2020.1570615953

Cited by 6 publications

(11 citation statements)

References 11 publications

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“…International Journal of Intelligent Engineering and Systems, Vol. 16 produces a minimum THD 𝐼 𝑆 of 1.32%. The UPQC system uses DC-link capacitors without PV injection and BES.…”

Section: Discussionmentioning

confidence: 99%

“…The proposed model and control method was able to overcome the coupling problem caused by the joint arm switch. An increase in load active power transfer using UPQC-PV-BES with PI and FLC control has been investigated [16,17]. In case of interruption of source voltage disconnection, the combination of UPQC-PV-BES with this method is capable of producing higher load voltage, load current, and load active power than the combination of UPQC-PV and UPQC.…”

Section: Introductionmentioning

confidence: 99%

“…This paper proposed the single-phase UPQC model integrated with PV using FLC with the Mamdani fuzzy inference system (FIS) algorithm. In contrast to previous studies applied to 3P3W/3P4W systems [10][11][12][13][14][15][16][17][18][19][20][21][22], the combination of UPQC with PV in this study is used in a single-phase PV distribution network, hereinafter referred to as single-phaseconnected UPQC-PV at LL and NLL respectively. Also different from previous UPQC configurations , the proposed single-phase UPQC design is without using a DC link capacitor circuit.…”

Section: Introductionmentioning

confidence: 99%

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Single Phase UPQC Integrated with Photovoltaic System without DC-Link Capacitor Using Fuzzy Logic Controller for Power Quality Improvement

2023

IJIES

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This paper proposed a single-phase unified power quality conditioner (UPQC) integrated by a photovoltaic (PV) array using a fuzzy logic controller (FLC) in a single-phase low-voltage 220 V-50 Hz distribution system to improve the power quality. The PV array consists of several PV panels with a maximum power of 12 kW. There are two proposed circuit configuration models, i.e. UPQC-PV connected to a linear load (LL) and UPQC-PV connected to a non-linear load (NLL). The proposed single-phase UPQC-PV is without using a DC link capacitor. The PV system is then used as a DC voltage source which functions to supply load active power when the source is interrupted and simultaneously replaces the role of the DC link capacitor to keep the PV output voltage and also the DC link connected to UPQC so that the value remains constant. FLC is used to overcome the weakness of the proportional-integral (PI) control method in determining the optimum parameters of the proportional constant and integral constant. There are six disturbances simulations i.e. Operating Mode (OPM) 1 (S-Sag-LL), OPM 2 (S-Swell-LL), OPM 3 (S-Inter-LL), OPM 4 (S-Sag-NLL), OPM 5 (S-Swell-NLL), and OPM 6 (S-Inter-NLL). In the single-phase system using UPQC-PV configuration, OPM 6 disturbance with FLC control is able to result in the lowest load voltage change. In the same configuration as the OPM 1 to OPM 6 disturbances, the FLC is able to produce a lower load voltage total harmonics distortion (THD) and source current THD than the PI control, and has complied with IEEE-519 limits. In the same configuration as PI/FLC control, OPM 4, OPM 5, and OPM 6 disturbances are able to absorb greater load active power than systems with OPM 1, OPM 2, and OPM 3 disturbances.

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“…International Journal of Intelligent Engineering and Systems, Vol. 16 produces a minimum THD 𝐼 𝑆 of 1.32%. The UPQC system uses DC-link capacitors without PV injection and BES.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Single Phase UPQC Integrated with Photovoltaic System without DC-Link Capacitor Using Fuzzy Logic Controller for Power Quality Improvement

2023

IJIES

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“…In [17] [25], the analyses were performed in the conditions of distorted voltage source, sag/swell voltage, unbalanced voltage, and unbalanced currents due to non-linear loads. A single UPQC-PV system linked to a 3P3W system was also proposed in [26] to reduce voltage sag as well as to sustain load voltage and deliver load power from PV due to interruption voltage. How-ever, the system was unable to properly transfer active power to the load because of load voltage drop caused by the interruption voltage.…”

Section: Nomenclaturementioning

confidence: 99%

Dual Fuzzy-Sugeno Method to Enhance Power Quality Performance Using a Single-Phase Dual UPQC-Dual PV Without DC-Link Capacitor

Amirullah,

Adiananda

2024

Prot. Control Mod. Power Syst.

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Unified power quality conditioner (UPQC) is a power electronics device consisting of a series active filter (Se-AF) and a shunt active filter (Sh-AF) connected in parallel through a DC-link circuit to overcome power quality problems, i.e., voltage sag, voltage swell, and non-linear (NL) load. The weakness of the UPQC is that it cannot function normally if the Se-AF and/or Sh-AF fail, and the devices are unable to transfer active power to the load in the event of an interrupt voltage at the source. This paper proposes a novel configuration of a dual UPQC supplied by a dual photovoltaic (PV), hereinafter referred to as 2UPQC-2PV, to improve the power quality performance of a single-phase 220 V/50 Hz distribution system. The 2UPQC-2PV configuration is proposed to anticipate the possible failure of both inverters in one of the UPQC circuits. The PV array replaces the DC-link capacitor to maintain its voltage connected to the DC-link of the UPQC constant while at the same time supplying active power to the load during an interruption voltage. The dual-fuzzy Sugeno (dual-FS) method is used to overcome the weakness of the dual-proportional-integral (dual-PI) control in determining the optimum parameters of proportional and integral constants. There are three disturbances simulated in each-of 2UPQC-2PV and 1UPQC-1PV using dual-FS and dual-PI, i.e., Case 1 (S-Sag-NL), Case 2 (S-Swell-NL), and Case 3 (S -Inter-NL). Each UPQC-PV combination using FS control is compared with PI control resulting in a total of six cases. The 2UPQC-2PV configuration with dual-PI and dual-FS controls, in the three fault cases, is able to produce higher voltage changes than the 1UPQC-1PV configuration. For the 2UPQC-2PV configuration in the three fault cases, Dual-FS control is able to produce lower THDs of load voltage and source current, than the dual-PI control, while meetings the limits of IEEE 519 Standard. In Case 3, the configuration of 2UPQC-2PV using the dual-FS method, is capable of delivering the active power of the load close to that in Case 1.

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“…To deal with these disadvantages, active power filters (APF) have been evolved to successfully reduce power distribution networks' current and voltage disruptions. These approaches have the capability to address a range of power quality (PQ) issues in [5][6][7][8]. Harmonic currents, voltage sag/swell, imbalanced three-phase voltage, and other power quality issues can all be detected using the harmonic comprehensive detection algorithm, which is based on improved p-q theory in [9].…”

Section: Introductionmentioning

confidence: 99%

ABC-WOA Optimization Strategy for UPQC Fuzzy PI Tuning

Sriramula Srimatha

2024

jes

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Growing numbers of power electronics-based non-linear loads have raised worries about power quality (PQ) problems, which include equipment failures, overheating, and unplanned shutdowns. Power filters have traditionally been used for harmonics elimination, but their limitations in dynamic compensation and size present challenges. The present research presents a new methodology using the Artificial Bee Colony - Whale Optimizations Algorithm (ABC-WOA) to optimize the Unified Power Quality Conditioner (UPQC) controller. Assignment aims to tackle obstacles that come with it. The suggested algorithm's efficacy is clear, as shown from the stabilization of objective function values. Highlighting the expertise of the Proportional-Integral (PI) controller in effectively regulating the DC-link voltage, this study successfully addresses power quality concerns. The analysis of voltage injection emphasizes the significant influence of the controller on the power system, showcasing seamless integration and enhanced power quality. This research provides valuable insights into the application of advanced control algorithms in power systems, specifically in addressing challenges related to non-linear loads and transient conditions.

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Power Transfer Analysis Using UPQC-PV System Under Sag and Interruption With Variable Irradiance

Cited by 6 publications

References 11 publications

Single Phase UPQC Integrated with Photovoltaic System without DC-Link Capacitor Using Fuzzy Logic Controller for Power Quality Improvement

Single Phase UPQC Integrated with Photovoltaic System without DC-Link Capacitor Using Fuzzy Logic Controller for Power Quality Improvement

Dual Fuzzy-Sugeno Method to Enhance Power Quality Performance Using a Single-Phase Dual UPQC-Dual PV Without DC-Link Capacitor

ABC-WOA Optimization Strategy for UPQC Fuzzy PI Tuning

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